908 Devices (MASS) Insider Trading & Ownership $4.65 -0.29 (-5.87%) Closing price 04:00 PM EasternExtended Trading$4.64 -0.01 (-0.22%) As of 07:30 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock 908 Devices (NASDAQ:MASS) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage27.70%Number OfInsiders Buying(Last 12 Months)1Amount OfInsider Buying(Last 12 Months)$42,900.00Number OfInsiders Selling(Last 12 Months)2Amount OfInsider Selling(Last 12 Months)$46,488.00 Get MASS Insider Trade Alerts Want to know when executives and insiders are buying or selling 908 Devices stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address MASS Insider Buying and Selling by Quarter 908 Devices Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame * Start Date * End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails5/14/2025Mark SpotoDirectorBuy10,000$4.29$42,900.00 2/3/2025Joseph H Iv GriffithCFOSell10,236$2.34$23,952.24 2/3/2025Michael S TurnerInsiderSell9,672$2.33$22,535.76 (Data available from 1/1/2013 forward) MASS Insider Trading Activity - Frequently Asked Questions Who is on 908 Devices's Insider Roster? The list of insiders at 908 Devices includes Christopher D Brown, Joseph H Iv Griffith, Kevin J Knopp, Mark Spoto, Michael S Turner. Learn more on insiders at MASS. What percentage of 908 Devices stock is owned by insiders? 27.70% of 908 Devices stock is owned by insiders. Learn more on MASS's insider holdings. Which 908 Devices insiders have been buying company stock? The following insiders have purchased MASS shares in the last 24 months: Kevin J Knopp ($178,500.00), and Mark Spoto ($42,900.00). How much insider buying is happening at 908 Devices? Insiders have purchased a total of 40,000 MASS shares in the last 24 months for a total of $221,400.00 bought. Which 908 Devices insiders have been selling company stock? The following insiders have sold MASS shares in the last 24 months: Christopher D Brown ($134,361.00), Joseph H Iv Griffith ($114,504.64), Kevin J Knopp ($63,497.00), and Michael S Turner ($59,107.44). How much insider selling is happening at 908 Devices? Insiders have sold a total of 60,254 908 Devices shares in the last 24 months for a total of $371,470.08 sold. 908 Devices Key ExecutivesDr. Kevin J. Knopp Ph.D. (Age 51)Co-Founder, CEO, President & Director Compensation: $761.12kMr. Joseph H. Griffith IV (Age 49)CFO & Treasurer Compensation: $491.89kMr. Michael S. Turner Esq. (Age 57)J.D., Chief Legal & Administrative Officer and Secretary Compensation: $470.65k1 recent tradesDr. Christopher David Brown Ph.D. (Age 49)Co-Founder, Chief Product Officer & Co-Chair of Scientific Advisory Board Compensation: $459.7kMr. Steve AraizaCo-FounderMr. Andrew BartfayCo-Founder & Director of Hardware DevelopmentMr. Michael JobinCo-Founder & Director of Product DevelopmentDr. Scott Miller Ph.D.Co-Founder & Director of MS EngineeringMs. Barbara Russo (Age 61)Vice President of Marketing & Corporate Communications Mr. Don Osmer (Age 58)Vice President of Human Resources More Insider Trading Tools from MarketBeat Related Companies Transcat Insider Trades Allient Insider Trades Standard BioTools Insider Trades EyePoint Pharmaceuticals Insider Trades Senseonics Insider Trades Cytek Biosciences Insider Trades Quantum-Si Insider Trades Aehr Test Systems Insider Trades Quanterix Insider Trades Frequency Electronics Insider Trades Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles UnitedHealth Insiders Double Down: Is UNH Stock a Value Play?Sprouts Stock: Insider Sales, But Strong Bullish Signals5 Hot Small-Cap Insiders Bought at the Peak of Tariff FearsThe Top-Ranked Insider Buys From April by Market CapMcDonald’s Insiders Sell Shares! Investors Should Do the Opposite This page (NASDAQ:MASS) was last updated on 5/21/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredGold Hits New Highs as Global Markets SpiralWhen Trump took office in 2017, gold was just $1,100 an ounce. By the time he left, it had soared to $1,839. ...Premier Gold Co | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... A single announcement by July 22nd could soon b...Altimetry | SponsoredThe Trump Dump is starting; Get out of stocks now?The first 365 days of the Trump presidency… Will be the best time to get rich in American history.Paradigm Press | SponsoredTrump’s treachery Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | SponsoredBuffett’s favorite chart just hit 209% – here’s what that means for goldA Historic Gold Announcement Is About to Rock Wall Street For months, sharp-eyed analysts have watched the ...Golden Portfolio | SponsoredEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | SponsoredIs President Trump Lying To You With This?President Trump’s economic transition isn’t without hardship. But what if there were a smart, tax-free way to ...Colonial Metals | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding 908 Devices Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share 908 Devices With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Buy MASS Stock Free MASS Stock Alerts